Fluoborate and crystal containing rare earth ions, growing method and application of crystal

Abstract

The invention relates to fluoborate and a crystal containing rare earth ions, and preparation method thereof. The chemical formula of the fluoborate is (Ca1-xRex)5(BO3)3F1-5xO5x, wherein x is more than 0 and less than 0.2; Re is Sc, Y or the rare earth ions; and the rare earth ions are La, Ce, Pr, Nd, Sm , Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, or Lu, or mixture of the rare earth ions. A flux method is adopted to grow a fluoborate crystal with high quality and large size; the crystal meets the requirement of blue green light wave-band laser frequency conversion, and can be used for manufacturing nonlinear optical devices; a monocrystal doped with rare-earth laser activated ions can manufacture laser-nonlinear multi-functional optical devices; and lasers manufactured by the crystal can be used in the fields such as spectroscopy, biomedicine, military, and the like.

Description

technical field

[0001] The invention relates to the field of artificial crystals and crystal growth in the technical field of optoelectronic functions, in particular to a fluoroborate containing rare earth ions, a crystal and a growth method and application of the crystal. Background technique

[0002] With the development of laser technology, lasers with different wavelengths are required in practical applications. Frequency doubling is a method often used in laser technology to change the output wavelength of laser beams. It usually uses a special nonlinear optical crystal placed in front of the laser beam to change the output wavelength of the laser beam. At present, the nonlinear optical crystal materials used in the blue-green light band mainly include KTP (KTiOPO 4 ), BBO (BaB 2 o 4 ) and LBO (LiB 3 o 5 ) crystals, etc.

[0003] In addition, for a long time, people hope to obtain crystal materials with composite functions, which can combine laser performance and...

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